Sleigh-brake.



J. M. BARIENGER.

SLEIGH BRAKE.

APPLICATION FILED rim. 0, 1913.

Patented Jan. 27, 1914.

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. BARIENGER.

SLEIGH BRAKE.

APPLICATION FILED FEB. 6, 1913.

Patented Jan. 27, 1914.

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J. M. BARIENGER.

SLEIGH BRAKE.

APPLICATION FILED rm. 6, 191a.

Patented Jan. 27, 1914.

3 SHEETS-SHEET 3.

INVENTOR Jam esA L fiarz'erz ger dd N I UNITE STATES PATENT OFFICE.

JAMES M. BARIENGER, OF CARTHAGE, NEW YORK, ASSIGNOR OF ONE-HALF TO RYTHER & PRINGLE QOMPANY, OF CAR-THAGE. NEW YORK.

SLEIGH-IBRAKE.

Application filed February 6, 1913.

Specification of Letters Patent.

Patented Jan. 27, 1914.

Serial No. 746,603.

To all whom it may concern Be it known that 1, JAMES M. BARIENGER, a citizen of the United States, residing at Carthage, in the county of Jefferson and State of New York, have invented certain new and useful Improvements in Sleigh- Brakes; and I do hereby declare the following to be a full, clear, and exact descriptlon of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in sleigh brakes, and especially to an apparatus for braking the descent of heavy loads upon mountain or hill sides, and comprises a series of friction pulleys about which a cable is passed in such a manner as to make it possible for the operator, by the adjustment of one or another of the pulleys, to regulate the lowering of the load upon a steep incline of a mountain slope.

The invention comprises various details of construction, combinations and arrangements of parts as will be hereinafter more fully described and then specifically defined in the appended claim.

My invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this application and in which Figure 1 is a side elevation of the apparatus partially in section. Fig. 2 is a top plan view. Fig. 3 is a top plan view of a disk and series of friction blocks. Fig. 4 is a perspective view showing the first step in the adjustment of the cable about the first pulleys. Fig. 5 is a similar view showing the second step in the adjustment of the cable. Fig. 6 is a perspective view illustrating the manner of adjusting the cable about the upper two of the four pulleys, and Fig. 7 is a view of a take up device for holding slack cable.

Reference now being had to the details of the drawings by letter A designates a sleigh provided with suitable runners whereby the apparatus may be drawn from place to place, and upon which are fastened four vertically disposed stub shafts, designated respectively by letters A, A A and A J ournaled upon the shaft A, is a pulley B, having three circumferential grooves B, B and B while similar pulleys G and D, are ournaled respectively upon said shafts A and A and a pulley E, having two circumferential grooves E and E is journaled upon the shaft A It will be noted that the pulley C has circumferential grooves C, and C and C, while the pulley D has similar grooves D, D and D Mounted upon the platform or top of the sleigh are the disks F, each having a series of openings F for the reception of the friction blocks F 2 of any suitable material, such wood or other fiber. A coiled spring G is mounted upon each of said shafts, and upon which the pulleys rest. Resting upon the upper end of each hub portion of a pulley is a key Gr, passing through a key slot G in the shaft and also through a groove G in a washer G- and against which latter a screw H, fitted in a threaded hole in the top of the shaft is adapted to bear, a suitable hand wheel H being fastened to the top of the screw and forming a convenient means whereby, as the wheel is turned in one direction, the key G may be caused to be forced down against said collar G resting upon the end of the hub of the pulley, which will tend to throw the under face of the pulley frictionally against the series of friction blocks beneath, thus serving to arrest the rotary movement of the pulley, said key preventing the washer from rotation. The spring G, it will be noted, will be put under tension as the pulley is forced down by the screw, and when the latter is rotated in the opposite direction, or unscrewed, the spring will cause the pulley to be raised from contact with the friction blocks.

At one end of the sleigh is a series of grooved pulleys, designated respectively by letters I, I, I and I provided for the purpose of guiding the cable K as will be seen upon reference to the drawings. At the opposite end of the sleigh are the bail shaped members J, J affording means whereby the sleigh may be held to a suitable anchorage.

In adjusting the cable to the pulleys, it is first passed about the pulleys B and C and D and E, as shown in Fig. 4%. A portion K of the cable is then passed about the pulleys and made to assume the position shown in Fig. 5 after which the portion K of the cable is passed about the pulleys E, D, C, and B as illustrated in Fig. 6, in the circumferential grooves therein, and is then passed about the three pulleys D, C, and B, and thence between the pulleys I and P. The cable is held to the pulleys I and I by the grooves in the latter cooperating with the grooves in the pulleys I and I Each end of the cable is adapted to be attached to a sleigh or other vehicle for carrying the load, and as one load goes down, the empty vehicle is adapted to be drawn up by the other end of the cable. In the drawings I have illustrated the two Vehicles in dotted lines by letters L and N, and when the loaded vehicle L is being lowered, the strain would come upon the pulleys B and C, the frictional brake being applied by the turning of either of the screws which cause the keys G to bear against either the collars G In the event of the vehicle N with its load being lowered, the strain would come upon the pulleys D and E, and the friction braking would be effected by the turning of one or the other of the screws which would cause the pulley B or G to be depressed against the friction blocks beneath the pulley.

In the event of it being desired to taKe up a considerable amount of slack in the cable, where the distance the load is to be lowered is not so great as where the take up is not necessary, a tackle block 0 is secured at any suitable location, and the cable passed about the same shown in the drawings. By this provision the cable may be utilized equally well in lowering loads down short inclines, as down long ones without the use of the take up.

What I claim to be new is A friction brake for lowering apparatus comprising a frame with frictional blocks thereon, a vertically disposed stub shaft mounted in said frame, a series of springpressed pulleys journaled upon said shaft and each having a plurality of grooves in the circumferences thereof, means for moving said pulleys under tension of said springs which contact with said friction blocks, a cable frictionally engaging two distinct grooves in the circumference of each pulley, the cable sections intersecting each other intermediate the pulleys, an anchored pulley independent of the frame about which the cable passes, and means upon the frame for holding the cable in the groove of the end series of the pulleys, as set forth.

In testimony whereof I hereunto my signature in the presence of two witnesses.

JAMES M. BARIENGER.

-Witnesses:

Gno. MoT. LovnLL, G. B. RAMKE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

